ItsyBitsy not entering bootloader Mode - Windows does not re

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MurdochRyan
 
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ItsyBitsy not entering bootloader Mode - Windows does not re

Post by MurdochRyan »

I recently purchased 10 ItsyBitsy 32u4 5V 16mhz devices.
After following the setup guide here: https://learn.adafruit.com/introducting-itsy-bitsy-32u4
2 of the 10 units do not respond when connected, windows does not recognize the devices.

I found a posting that has my exact symptoms and the result there was to contact support via email.
The forum post: viewtopic.php?f=62&t=179347

Device manager shows the 2 as “Atm32U4DFU” under Other Devices. The device LEDs also do not flash like they should.
For the other 8, they connect under Ports (COM & LPT), USB Serial Device (COM6). LED flashes while connected.
Double pressing the reset button didn’t help, neither has holding it for 2 seconds.
I have tried manually assigning them as serial devices with both windows usbser drivers and specifying the devices as ItsyBitsy (800E:00) from your driver package, no luck here either.

Throughout testing and setup I used the same Micro USB cable for all devices and tried different cables with the 2 non functional devices with no luck.
Is there anything else I should try before considering these as DOA?

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adafruit_support_carter
 
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Re: ItsyBitsy not entering bootloader Mode - Windows does no

Post by adafruit_support_carter »

When you double pressed the reset button, the red LED still did nothing?

Also try this with one that works to verify the red LED behavior. It should pulse for a bit.

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MurdochRyan
 
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Re: ItsyBitsy not entering bootloader Mode - Windows does no

Post by MurdochRyan »

Yes, double pressing the reset button didn’t help.
On the 2 nonfunctional devices, the LED does not light up at all.
On the functional devices, the LED starts blinking right as it's plugged in and is properly identified in device manager.

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adafruit_support_carter
 
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Re: ItsyBitsy not entering bootloader Mode - Windows does no

Post by adafruit_support_carter »

OK, let's replace them. Send an email to [email protected] with a link to this thread and your order number and they can send you 2 new Itsy 32u4's.

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adafruit_support_carter
 
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Re: ItsyBitsy not entering bootloader Mode - Windows does no

Post by adafruit_support_carter »

Hey @MurdochRyan , just some info that'll help us - where did you order the boards from? Thanks.

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